
TY  - JOUR
A1  - Elix, JA 
A1  - Musidlak, HW 
A1  - Sala, T 
A1  - Sargent, MV 
T1  - Structure and synthesis of some lichen xanthones
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1978
VL  - 31
IS  - 1
SP  - 145
EP  - 155
KW  - 
UR  - https://doi.org/10.1071/CH9780145 
N2  - The xanthones 1-hydroxy-3,6-dimethoxy-(2), 2,4-dichloro-1,3-dihydroxy- 6-methoxy-(6), 2-chloro-1,3-dihydroxy-6-methoxy- (7), 4-chloro-1,3- dihydroxy-6-methoxy- (8) and 2-chloro-1-hydroxy-3,6-dimethoxy-8-methyl-9H-xanthen-9-one (11) were isolated from the lichen Pertusaria sulphurata Mull. Arg. The unambiguous synthesis of compounds (6), (7), (8), (11) and some other chloroxanthones, and the chlorination of 1,3- dihydroxy-6-methoxy-8-methyl-9H-xanthen-9-one (5), are described. 
ER  -

